> I'm also not the target audience for the LHC or James Webb but effort has been made to describe it.
And there is an effort to describe Lean on their webpage. But I would be curious to know if you would be able to recall the "elevator pitch" you heard for the LHC that doesn't grossly gloss over any kind of relevant actual information. "Customers were dissatisfied because previous colliders were too small, so we made a bigger one. This allows us to hurl particles very fast at each other." Huzzah, you've just been elevator pitched. Do you actually know anything significant about the LHC after that pitch? I sincerely doubt it.
You're also glossing over the fact that the LHC was started in 1998. The James Webb telescope has been in the works since the 90's. Meanwhile, Lean started as a research project in 2013, and Lean 4 is only 1.5 years old. Being angry that scientists have been developing the fundamentals before engaging in outreach is misguided at best.